It should be snug but not restrictive. If it slides up when you lift your arms, the band is too large.
These "hug" the breasts against the chest. They are typically pullover styles best suited for smaller cup sizes or low-to-medium impact. how to buy a sports bra
Best for yoga, walking, or Pilates. These usually have thinner straps and lighter fabric. It should be snug but not restrictive
These utilize both methods, offering a compression overlay on top of encapsulated cups for maximum stability. The "Perfect Fit" Checklist how to buy a sports bra